GPT-5.5on Krater.ai
OpenAI's GPT-5.5 is the next-generation flagship model with a 1M-token context window, sharper reasoning, and improved instruction following over GPT-5.3. Available now on Krater alongside 350+ other AI models.
Released April 24, 2026
Specifications
GPT-5.5 at a glance
Context
1.1M tokens
Max output
128K tokens
Input
File, Image, Text
Output
Text
Input price
$5.00 / 1M
Output price
$30.00 / 1M
Knowledge cutoff
2025-12-01
Krater rank
#4
Capabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
- Frontier reasoning across math, code, and analysis
- 1M-token context for long documents and codebases
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
74.9
Agentic index score
47.4
Intelligence index score
56.3
Design Arena svg rank
#4
Design Arena gamedev rank
#5
Compare
Compare GPT-5.5
GPT-5.5 vs GPT-4o
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs.
Open comparisonGPT-5.5 vs GPT-4o Mini
GPT-4o mini is OpenAI's newest model after GPT-4 Omni, supporting both text and image inputs with text outputs.
Open comparisonGPT-5.5 vs GPT-5.5 Pro
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads.
Open comparisonFAQ
Questions about GPT-5.5
Clear answers based on the model catalog and Krater access.
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